v3.25.2
Benefit Plans (Components of Net Periodic Cost (Benefit)) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Retirement Benefits [Abstract]        
Interest cost on projected benefit obligation $ 9 $ 22 $ 18 $ 44
Expected return on plan assets (13) (29) (27) (58)
Amortization of net actuarial loss (gain) 2 7 4 14
Total net periodic pension cost (benefit) $ (2) $ 0 $ (5) $ 0
DefinedBenefitPlanNetPeriodicBenefitCostCreditInterestCostStatementOfIncomeOrComprehensiveIncomeExtensibleListNotDisclosedFlag     Other operating expenses, Insurance claims and policyholders’ benefits (re-measurement loss of $15, $25, $23 and $40) Other operating expenses, Insurance claims and policyholders’ benefits (re-measurement loss of $15, $25, $23 and $40)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Other operating expenses, Insurance claims and policyholders’ benefits (re-measurement loss of $15, $25, $23 and $40)  
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]     Other operating expenses, Insurance claims and policyholders’ benefits (re-measurement loss of $15, $25, $23 and $40)